Ie-fastener



iilivrritn STATES Fari-Nr @turen cHARLEs A. DENison, on GREENRsH, NEW YORK.

HAEVi-FASTENER.

SFECIFICATION forming part of Letters Patent No. 304,801, dated September 9, 18S/.

Application um July 1, 1re-1. (No model.)

io a/ZZ whom, t may concern:

Be it known that I, CHARLES A. DENIsoN, of Greenbush, in the county of Rensselaer and State of New York, have invented new and useful Improvements in Haine-Fasteners, of

`which the following is a full and exact de scription, reference being had'to theaccompanying drawings, which form part of this specification, and in which- Figure lis a plan view of my llame-fastener in its contracted or locked condition; Fig. 2., a side elevation of the same; Fig. 3, a side elevation of my llame-fastener in its extended or unlocked condition; Fig. e, a longitudinal section of Fig. 3, and Fig. 5 an inverted plan View of the detachable and adjustable hooklink.

My invention relates to improvements on that class of haine-fasteners in which the operations of looking and unlocking the fastener are effected by means of a lever; and the object of my invention is to provide a fastening device that will be simple, cheap, and reliable, whose operations-in fastening and releasingr the ha1nes-w1l be expeditious and positive, and which can be readily adjusted in length, as occasion requires. This object l attain by means ofthe mechanism herein described, and illustrated in the accompanying drawings.

As represented in the drawings, my hamefastener is composed of the following parts: an operating-lever, A, and its attached hookpiece B, connecting-bar C, and detachable and adjustable hook-link D. The operating-lever A is a single piece, madein the form of an open oblong link bent iiatwise in the direction of its length to a very obtuse angle, and having the side bars, a, end bars, a and a2, and bridge-bar c. The hook-piece B consists of a hook, b, and two side limbs, b', the latter being adapted to extend down at the outer edges of the lever A, and are pivoted, as at b2, to the side bars, a, so as to swing with perfeet freedom over the shortest end of said lever; The hook b is designed to engage in a loop or eye formed on the lower end of one of the haines, and forms the means of securing one end of the fastener to the hames. The connecting-bar C is jointed to swing freely on the cross-bar c of the operating-lever, and it has on its free end a hook, c, which is adapted to engage in the detachable link. The detachable link D is provided at one end with a hook, d, for the purpose of attaching one end of the fastener to one part of the haines. The plate of said link is divided by means ofthe cross-bars d into a series of openings, cl2, into any one of which the hook c of the connecting-bar C can be inserted, to attach said link to the fastener, the series of holes d2 aifording facilities for adjusting the fastener to any desired length. The detachable link D, when the fastener is closed, as shown in Figs. l and 2, will be kept in place by means of the bridgebar ai, which will then bear against the under face of said link, near its rearmost end.

The mode ol' operating my haine-fastener is as follows: The device being in the extended condition shown in Figs. 3 and 1 1-, and the hooks b and d being properly connected to the loops in the lower ends of the two parts ot' the haines, the operating-lever A is turned on its pivotal center b2, in the direction indicated by the arrow on Fig. 4, until the relative positions of the ends of said lever are reversed, and the fastener is reduced to its least length consistent with its present atljustment, as shown in Figs. l and 2. In effecting the above-described movement the end o f the lever A, to

which the connecting-ban() is attached, is

passed between the limbs b' of the hook-piece B until the cross-bar c lies slightly below an imaginary direct line drawn between the centers of the hooks b and d, (as'indicated by theA broken line on Fig. 2,) and until the cross-bar a bears against the link D, in which disposition of the parts the strains on the hooks b and d tend to retain the parts in a locked condition that will resist any accidental displacement of them. To release the fastener the free end of the operating-lever is moved until the joint at c lies slightly above the imaginary direct line between the hooks b and d, above referred to, whereupon the strains acting upon said hooks will instantly extend the device into the condition shown in Figs. 3 and 4, so that its detachment from the haines can be easily effected by simply disengaging one of the hooks-either b or d.

Provision is made, by means of the different ICO openings d2 in the link D, for the adjustment of the fastener to different lengths; but When occasion requires a still greater extension of it may be obtained by means of one or more 5 links provided with a hook and a suitable eye7 that may be attached to either of the hooks b and d.

I olaim as my invention- In a hame-fastener, the operating-lever A7 1o made in the form of an open oblong link that is bent iiatwise to a very obtuse angle in the direction of its length7 and has the hook-piece B pivoted thereto by means of iiXed pivotal d, and openings d2, as and for the purpose herein 2o specified.

CHARLES A. DENISON.

Vituesses:

WM. H. LOW,

S. B. BREWER. 

